China Xiamen Juguangli Import & Export Co., Ltd Company News

The characteristics of food-grade silicone products, in modern society, food safety has received more and more attention. As a material in direct contact with food, food-grade silicone products play an important role in food processing, storage and packaging.   1. What is food grade silicone products Food-grade silicone products refer to silicone products that meet national food safety standards, and they can be safely in contact with food without contaminating food. Such products are usually used in food processing, baking, cooking, storage and other links.   2. Characteristics of food-grade silicone products Safety: Food-grade silicone products do not contain harmful substances, non-toxic, tasteless, will not cause food pollution, in line with national food safety standards. Temperature resistance: Food-grade silicone products have excellent temperature resistance and can be used in the temperature range of -40 ° C to 240 ° C, suitable for a variety of cooking and baking environments. Chemical resistance: Food-grade silicone products can resist the erosion of most chemical substances, such as grease, acid and alkali, etc., to ensure the safety and quality of food. Anti-stickiness: Food grade silicone products have smooth surface, good anti-stickiness, easy to clean and maintain. Elasticity and flexibility: food-grade silicone products have good elasticity and flexibility, and can adapt to different use scenarios and needs. Aging resistance: food-grade silicone products have a long service life, not easy to age, durable. Rich color: food-grade silicone products can be made into a variety of colors to meet the individual needs of different customers.   3. Application scenarios of food-grade silicone products Baking tools: such as silicone baking molds, baking MATS, etc., can be used to make a variety of pastries and breads. Food packaging: such as silicone cling film, silicone sealing ring, etc., used for food sealing and packaging. Kitchen supplies: such as silicone spatula, silicone spatula, etc., for cooking and stirring food. Storage containers: such as silicone storage boxes, silicone bags, etc., for storing various foods.   Food-grade silicone products have been widely used in the food industry for their safety, temperature resistance, chemical resistance and stickiness resistance. When choosing food grade silicone products, please ensure that the product meets the national food safety standards to ensure the safety of food and the health of consumers.

Glass is a hard and brittle transparent object with no definite melting point. Generally made of quartz sand, limestone, soda ash, etc., after being mixed, melted at high temperatures, formed, and cooled. Glass is an indispensable item in life, today and you talk about how to identify the quality of glass and how to order glass should be transported.   Flat glass inspection, the appearance quality is mainly to check the flatness, observe whether there are air bubbles, inclusions, scratches, lines and fog spots and other quality defects, the existence of such defects in the use of glass, deformation will occur, reduce the transparency of the glass, mechanical strength and thermal stability of the glass, engineering should not be selected. Because the glass is a transparent object, it can basically identify the quality after visual inspection when selecting.   Good flat glass products should have the following characteristics: it is colorless and transparent or slightly light green, the thickness of the glass should be uniform, the size should be standardized, no or few bubbles, stones and waves, scratches and other defects.   The inspection of glass processing products, in addition to the requirements of flat glass testing, should also test its processing quality, test whether the size of the standard, processing accuracy and pattern clarity, etc. meet the requirements, while the side is not allowed to have defects.   The original glass that has not been processed by glass is relatively easy to break, and more attention should be paid to it during transportation. Glass transport precautions: 1, in order to avoid unnecessary losses during the transportation process, we must pay attention to fixing and adding soft pads. It is generally recommended to use the upright method of transport. The vehicle should also be careful to maintain a steady, slow speed. 2, the other side of the glass installation is closed, pay attention to clean the surface before installation. It is best to use a special glass cleaner, and to dry to prove that there is no stain before installation, installation is best to use clean construction gloves. 3, the installation of glass, to use silicone sealant to fix, in the installation of Windows, but also need to be used with rubber seals. 4, after the completion of construction, pay attention to the anti-collision warning signs, generally can be used not to paste, color electrical tape to prompt. 5. Do not collide with sharp objects.

What is the role of silicone products spray handle oil? In modern industrial production, silicone products are widely used because of their superior physical properties and environmental protection characteristics. However, in the case of silicone products without special treatment, the surface may appear more astringent, affecting the user experience. At this time, the spray oil process has played an important role.   1. Improve product feel Spray handle oil can form a smooth protective film on the surface of silicone products, effectively improve the feel of the product. Specific performance is as follows: Increase smoothness: After spraying the feel oil, the surface of the silicone products is smoother, reducing the friction with the hand skin and improving the comfort of touch. Improve touch: Feel oil can eliminate the astringent feeling of the surface of silicone products, make the product more smooth to touch, improve the user experience.   2. Prevent dust absorption After the silicone products are sprayed with handfeel oil, the protective film formed on the surface can effectively prevent the adsorption of impurities such as dust and hair, and keep the product clean. The following are the two main functions of preventing dust adsorption: Dust-proof effect: The handfeel oil has a certain hydrophobicity, which reduces the contact between dust and the product surface and reduces the possibility of dust adsorption. Keep clean: The surface of silicone products after spraying hand oil is easier to clean, and the dust can be removed by gently wiping.   3. Eliminate static electricity Silicone products are prone to static electricity in the production and use of the process, spray handle oil can eliminate static electricity, to avoid electrostatic adsorption of dust and other particles. The following are the effects of eliminating static electricity: Reduce static electricity generation: Feel oil has a certain antistatic performance, can reduce the accumulation of static electricity on the surface of silicone products. Prevent dust adsorption: Eliminating static electricity helps reduce dust adsorption and keep the product clean.   4. Enhance product aesthetics Spray handle oil can not only improve the feel of the product, but also increase the beauty of the product surface. The following are the effects of enhancing aesthetics: Improve gloss: feel oil can make the surface of silicone products more bright, improve the appearance of the product quality. Increase the texture: the surface of the silicone products after spraying feel oil is more textured, making the product more attractive.

What kinds of silicone products are there? Silicone products play an important role in our daily life, and they are a wide variety and widely used. Analyze the types of silicone products in detail to help you better understand this field.     1. Overview of silicone products Silica gel products are made of silica gel this polymer material products, silica gel has good temperature resistance, chemical resistance and softness, so in various industries have a wide range of applications.   2. Classification of silicone products Silicone products can be classified according to their use, form and manufacturing process, the following are some common classification methods: Classification by use: Daily necessities: such as silicone kitchen utensils, tableware, bathroom supplies, etc. Industrial accessories: such as silicone sealing ring, silicone tube, silicone pad, etc. Medical equipment: such as silicone prosthesis, medical catheter, etc. Electronic accessories: such as mobile phone protective cases, buttons, etc. Classification by form: Solid silicone products: such as silicone bracelets, silicone MATS, etc. Liquid silicone products: such as silicone breast pads, artificial human organs, etc. Extruded silicone products: such as silicone tube, silicone strip, etc. Classification by manufacturing process: Molded silicone products: vulcanized by high temperature mold, such as silicone buttons, silicone accessories, etc. Extrusion of silicone products: extrusion molding through the extrusion machine, such as silicone tube, silicone strip, etc. Injection silicone products: through injection molding machine injection molding, such as medical silicone products.   3. Introduction of common silicone products Silicone kitchenware: including silicone bowl, silicone spoon, silicone scraper, etc., high temperature resistance, easy to clean. Silicone bracelet: with environmental protection, soft, comfortable and other characteristics, widely used in sports, fashion and other fields. Silicone sealing ring: used for sealing of various mechanical equipment and electronic equipment, with good sealing performance. Silicone tube: used for infusion, gas transmission and other occasions, with good softness and temperature resistance.  

Silicone products, with its excellent high and low temperature resistance, waterproof, flame retardant, wear resistance, oil resistance and other excellent characteristics, widely used in all aspects of our lives, from kitchen supplies to electronic products, from medical equipment to auto parts, silicone products everywhere. However, behind these applications, the tensile strength of silicone products is a frequently mentioned but not fully known performance indicator.   Tensile strength, as an important performance index of silicone products, refers to the force required on each range unit to cause a sample of silicone material to tear. It reflects the ability of silicone material to resist damage when stretched by external forces. In practical applications, the tensile strength of silicone products directly affects the service life, safety and reliability of the products. For example, in the medical field, silicone catheters need to withstand a certain amount of pressure without breaking, which requires it to have a high tensile strength; In auto parts, silicone seals need to have good elasticity and toughness to cope with a variety of complex environmental conditions, which is also closely related to its tensile strength.   The tensile strength of silica gel products is affected by many factors, including the type of silica gel, formula, production process and test conditions. First of all, the type of silica gel has a direct impact on the tensile strength. Common types of silicone include hot sulfurized solid organic silicone rubber, fluorosilicone rubber and liquid silicone rubber. These different kinds of silica gel have significant differences in tensile strength. For example, the tensile strength range of hot sulfurized solid organic silicone rubber is usually between 4.0-12.5MPa, while the tensile strength range of fluorosilicone rubber is between 8.7-12.1MPa. The tensile strength of liquid silicone rubber is relatively low, generally between 3.6-11.0MPa.   Secondly, the formula of silica gel also has an important impact on tensile strength. The type and amount of ingredients such as filler, vulcanizing agent and plasticizer in the formula will affect the tensile strength of silica gel. For example, the addition of filler can increase the hardness and strength of the silica gel, but too much filler may also cause the tensile strength of the silica gel to decrease. The selection and dosage of vulcanizing agent directly affect the degree of vulcanization and crosslinking density of silica gel, thus affecting its tensile strength. The addition of plasticizer can improve the flexibility of silica gel, but too much plasticizer will also reduce its tensile strength.   The production process also has an important influence on the tensile strength of silica gel products. In the production process of silicone products, molding, vulcanization, stripping and other process steps will affect the tensile strength of the product. For example, the pressure and temperature control during molding, the choice of vulcanization time and temperature, and the mode of release will affect the internal structure and performance of silicone products, thus affecting its tensile strength.   Test conditions are also one of the important factors affecting the tensile strength of silicone products. When testing the tensile strength of silicone products, it is necessary to follow the prescribed test methods and standards. Different test methods and standards may lead to differences in test results. Therefore, when comparing the tensile strength of different silicone products, it is necessary to ensure the consistency of the test conditions and test methods.   In addition to the above factors, the tensile strength of silicone products may also be affected by other factors, such as environmental factors (such as temperature, humidity, etc.), use time and use mode. At high or low temperatures, the tensile strength of silicone products may change. Prolonged use or improper use may also lead to a decrease in the tensile strength of silicone products.   In practical applications, understanding the tensile strength of silica gel products is of great significance for selecting suitable silica gel materials, designing reasonable product structure and ensuring product quality and safety. For example, in the medical field, it is necessary to choose silicone materials with high tensile strength to make medical devices such as catheters to ensure that they will not break or leak during use; In the field of electronics, it is necessary to select silicone materials with appropriate tensile strength to make electronic accessories such as seals and shock absorbers to ensure that they have good sealing and shock absorption performance.   In order to improve the tensile strength of silicone products, a variety of measures can be taken. For example, by optimizing the formula of silica gel, selecting the appropriate type and amount of ingredients such as filler, vulcanizer and plasticizer; Improve the production process, optimize the parameters and control conditions of molding, vulcanization, demoulding and other process steps; And strengthen the quality control and testing means to ensure that the tensile strength of silicone products meet the design requirements.   The tensile strength of silicone products is a complex and important performance index. It is affected by many factors, including the type of silica gel, formula, production process and test conditions.

Silicone sealing ring, as an indispensable sealing element in modern industry, with its excellent high temperature resistance, corrosion resistance, anti-aging and other characteristics, in machinery, automotive, electronics, food and other fields have been widely used. The formulation of its standard specifications is not only related to the performance of the product, but also directly affects the interchangeability and use effect of the product. 1. Size specifications The size of the silicone sealing ring is the primary consideration in the selection and use process. In general, the size of the silicone sealing ring includes three main parameters: inner diameter, outer diameter and thickness. On the market, the internal diameter of common silicone seals ranges from 1mm to 1200mm, the outer diameter ranges from 2mm to 1500mm, and the thickness is between 0.5mm and 40mm. Different shapes of silicone seals, such as O-rings, U-rings and V-rings, their size specifications are also different. For example, the inner diameter and outer diameter of the O-ring can range from 1mm to 1200mm, and the thickness can range from 0.5mm to 12mm; The inner diameter and outer diameter of the U-ring can be from 2mm to 1200mm, and the thickness can be from 1mm to 20mm. In addition, the size specifications of the silicone sealing ring are also subject to multiple constraints of international standards, industry standards and enterprise standards. For example, the Japanese standard, the American standard and other international standards have detailed provisions on the size of O-rings, such as ID1.801.90, ID2.801.90 and other specifications; Domestic enterprises may develop more detailed specifications according to their own needs. Therefore, when selecting the silicone sealing ring, it is necessary to select according to the specific application scenarios and needs, and refer to the relevant standards. 2. Material requirements The material requirements of the silicone sealing ring are equally strict. According to the standard requirements, the silicone sealing ring should be made of silicone rubber material that meets the requirements, and the material should have the characteristics of high temperature resistance, corrosion resistance and aging resistance. At the same time, the physical and chemical properties of silica gel materials should also meet the requirements of use, such as tensile strength, tearing strength, hardness, resilience and so on. In addition, in order to ensure the safety and environmental protection of products, silicone materials also need to pass relevant testing and certification, such as FDA food grade certification, RoHS environmental protection directives. 3. Performance requirements The performance requirements of silicone seals are also an important part of their standard specifications. According to the standard requirements, the silicone sealing ring should be able to withstand a certain pressure, temperature and chemical corrosion conditions, while having high wear resistance, fatigue resistance and mechanical strength. In harsh environments, silicone seals should be able to maintain good sealing performance and stability, not affected by rain, snow, humidity, ozone, solar ultraviolet and other external factors. In addition, the silicone sealing ring should also have good electrical insulation and flame retardant properties to ensure the safe operation of the equipment. 4. Production and testing The production process of silicone seals also follows strict standards and processes. From raw material preparation to formulation, rubber calendering, molding, surface treatment to product quality inspection and packaging, every step is carried out in strict accordance with the relevant standards. In the production process, it is also necessary to carry out various performance tests on the silicone sealing ring, such as dimensional inspection, appearance inspection, physical performance testing, etc., to ensure that the product meets the standard requirements. At the same time, manufacturers also need to establish a sound quality management system and after-sales service system to provide high-quality products and high-quality service.   The standard specifications of silicone sealing rings cover many aspects such as size, material and performance requirements. The development and implementation of these standards not only ensure the performance and use effect of silicone seals, but also promote their wide application in various fields.

In the rubber industry, with the development of production and the improvement of the performance of rubber products, the problem of increasing heat generation in the process of rubber processing has appeared. Therefore, how to ensure the safety in the process of processing has become an important topic. Now the main method is to add a small amount of anti-coke agent in the process to improve the safety of the processing process, increase the storage life of the rubber or glue, when adjusting the vulcanization system is difficult to achieve the required operation safety, adding anti-coke agent can often easily meet the requirements of the scorch performance of the rubber. In the process of storage and processing, due to the effect of heat, early vulcanization (cross-linking) will occur and lose the fluidity and reprocessing ability, which is the scorch phenomenon. The burning of rubber is one of the common problems in the process of rubber processing. The burning problem is more likely to occur in the modern characteristics of high temperature, fast and efficient processing technology and the mixing agent that is easy to cause burning (such as reinforcing resin, intermethyl white system adhesive, fine particle carbon black, etc.). Coke burning can be solved by adjusting the vulcanization system, but be careful to change the properties of the compound; The storage or processing conditions of the adhesive can be improved by cooling, but complex equipment is needed, and the use of anti-coke agent is a simple and easy way to prevent scorch. Therefore, the anti-coke agent has become an important operating assistant for the safety of rubber processing.

Basic testing standards for silicone products   1. Material safety testing First of all, the material safety of silicone products is the primary consideration. This includes harmful substances such as heavy metals in silica gel raw materials (lead, mercury, cadmium, etc.), harmful additives (such as plasticizers), volatile organic compounds (VOCs), etc. These tests are usually carried out in accordance with relevant international or domestic safety standards, such as the European Union's ROHS directive and REACH regulations As well as China's GB/T standards, etc., to ensure that the product is harmless to the human body and meets environmental protection requirements.   2. Physical performance test Physical property test is an important step to evaluate the basic properties of silicone products. This includes, but is not limited to, hardness testing (e.g. Shaw Hardness), tensile strength, tear strength, resilience, wear resistance, aging resistance, etc. These tests are intuitive The durability and service life of silicone products ensure their stability and reliability in various application environments.   3. Weather resistance test The weather resistance test of silicone products is also essential. This includes high temperature resistance, low temperature resistance, ultraviolet resistance, ozone resistance and so on Tests to simulate the use of products in extreme environments to assess their performance changes and degree of aging. Especially for Outdoor use of silicone products, such as seals, gaskets, etc., weather resistance testing is particularly important.   Inspection standards for specific application areas   1. Silicone products for medical devices For medical device silicone products, in addition to the above basic testing, biocompatibility testing is also required. This includes cells Toxicity test, sensitization test, intradermal irritation test, etc., to ensure that the product will not cause adverse reactions when in contact with the human body Yes. At the same time, it also needs to meet the relevant regulations and standards for medical device registration, such as ISO 10993 series standards.   2. Food grade silicone products The testing standards of food-grade silicone products are more stringent, and it is necessary to ensure that the product will not release harmful substances when in direct contact with food Quality. This includes the purity requirements of the silica gel raw material, the testing of migratory substances (such as heavy metals, plasticizers, etc.), smell and taste Dao test, etc. At the same time, it also needs to meet the regulatory requirements of various countries on food contact materials, such as the US FDA and the EU LFGB Let's wait.   3. Electronic and electrical silicone products Electronic and electrical silicone products need to be tested for electrical performance because of the particularity of their application environment. This includes insulation resistance Voltage resistance testing, flame retardant testing, etc., to ensure that the product will not cause electrical safety problems during use. In addition For some silicone products for specific purposes, such as conductive silicone buttons, electrical conductivity testing is also required.

In modern industry and daily life, the application of electricity is everywhere, and the accompanying electrical safety problems are increasingly attracting people's attention. Silicone products have a wide range of applications today, silicone gloves as a common protective equipment, its insulation and anti-electrical properties play an important role in ensuring the safety of personnel.   1. Insulation performance of silicone gloves Silicone gloves are protective gloves made of silicone material with good elasticity and wear resistance. More importantly, the silicone material itself has a high resistivity, which makes the silicone gloves have excellent insulation properties. When the human body comes into contact with the charged body, the silicone gloves can effectively block the current path and reduce the damage of the current to the human body. Therefore, silicone gloves are widely used in electric power, electronics, chemical and other industries need to contact live bodies.   2. Electric resistance of silicone gloves The electric resistance of silicone gloves is not only related to its material characteristics, but also closely related to its production process, thickness, use method and other factors. Generally speaking, the higher the insulation resistance of silicone gloves, the better their electrical resistance. At the same time, the thickness of the gloves is also an important consideration, and thicker gloves usually have better insulation. However, over-thick gloves can affect hand flexibility, so insulation and comfort need to be weighed in practical applications.   3. Application of silicone gloves Silicone gloves are widely used in the following situations because of their excellent insulation and anti-electrical properties: Power industry: When conducting power equipment maintenance, maintenance and other operations, silicone gloves can effectively protect staff from electric shock damage. Electronic industry: In the process of production and maintenance of electronic products, silicone gloves can prevent electrostatic damage to sensitive components. Chemical industry: When handling certain chemicals, silicone gloves can effectively isolate chemical substances from skin contact, reducing the risk of chemical burns.

We know that most of the back of the silicone keys are designed with a conductive structure, generally conductive black particles or conductive ink. And this silicone key will have an elastic wall structure, so that the key can have the function of pressing and playing up. So how should the elastic wall structure of the silicone key be determined?   Many customers do not know how to design the elastic wall at the time of design, Xiao Bian also summed up some experience after a few years in the professional custom silicone button Bohao electronics factory. In fact, most of the design of the key is a preliminary appearance design, and the specific elastic wall part is designed by the engineer of the key customization factory or the key mold manufacturer according to the elastic requirements of the key.   The elastic requirements of most silicone keys will be about 200g, and the elastic requirements of Europe and the United States may be a little higher than that of Asia. After knowing the elasticity requirements, the key customization manufacturer will design the thickness, Angle, stroke, etc., of the inclined wall, so that the elasticity of the key can be controlled to a range.